Apparatus for manufacturing hollow glass articles.



- Pa'tented-Mar; 210, I900. w BUTTLER. APPARATUS FOR MANUFACTURINGHOLLOW GLASSARTIGLES.

(Application filed May '29, 1 899.)

2 H I i A 9 my? C U mvE'NToR 'WITN ESSES m: Nuums warms cc Pumuuwa,WASHINGTON. n. c.

- Nrrsn STATES WILLIAM BUT'ILER, OF REDKEY, IN D IANA.

SPECIFICATION forming part of Letters Patent No. 645,787, dated March20, 1900; Application filed May 29,1899. Serial No. 718,628. (No model.)

To all whom it may concern.-

' Be it known that I, WILLIAM BUTTLER, of Redkey, in the county of Jayand State of Indiana, have invented a new and useful Improvement inApparatus for the Manufacture of Hollow Glass Articles, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, forming part of this specification, inwhich- Figure 1 is a sectional side elevation of apparatus embodying myinvention. Fig. 2 is a top plan view of the same, and Fig. 3 is avertical cross-section through the reheatingfurnace. 1

My invention relates to the manufacture of hollow glass articles bypressing a blank and then blowing this pressed blank; and its objectsare toimprove the quality of articles thus made, to enable the pressedblank to be elongated without mechanical means therefor, and to give theblank a better surface. Heretofore the pressed blank whose surfaces havebeen chilled by contact with the mold and plunger has been takendirectly to the blowinold, and this chilling of the surfaces of thepressed blank interferes materially with its elongating and propershaping by the blowing operation and also prevents the formation of anarticle having the desired surface finish.

Myinvention overcomes this difficulty; and it consists in usingtransfermechanism which carries a mold-ring with a blank therein from apressing apparatus to a blowing apparatus and a furnace or source ofheat in the path of the transfer mechanism and arranged to heat at leasta portion of the blank before blowing or expanding.

It also consists in the mechanism hereinafter more fully described, andset forth in the claims.

In the drawings, 2 2 represent rails of a horizontal track, which leadfrom a pressingstation A to a blowing-station B. Intermediate of thelength of this track is placed a reheating-furnace 3, which is open atits top I and is provided with, side openings into which project burnersat, secured to supply-pipes 5, which may be supported in differentpositions by sets of lugs 6, located in pairs at difierent levels on thesides of the furnace. This furnace is preferably provided with a sheetmetal hood 7, which may be arranged so as to be easily removable.

At the pressing-station, 8 represents a press mold, which may besupported on a hydraulic or other plunger, and 9 is the mold-plunger,which may be similarly carried. The mold and its plunger aresimultaneously moved toward and from each other by the cylinders or anyother suitable mechanism.

- 10 is a mold-rin g made in two parts and having lateral wings 11,which are flanged so as to rest upon and be moved along the track.

10 is a rotatory ring carried in the two-part mold-ring. This mold-ringmay be provided with suitable handles 12 for opening or closing and formoving it along the track.

At the blowing-station, 13 represents a blow mold, which I have shown asmade of two parts, which are hinged at the bottom to a common shaft 14,but any desired form of blow-mold may of course be used.

15 is a rotary blow-head, which is beveled to engage thecorrespondingly-beveled recess in the upper face of the rotary ring 10and is secured to rotary shaft 16, having'a key connection with a pinion17. Above the pinion the hollow shaft connects with a flexible airsupply tube 18. The pinion may be actuated by a rack 19 or in any otherdesired manner.

In using my improved apparatus asuitable quantity of hot glass beingdropped into the press -mold this mold and its plunger are moved towardeach other and meet at the mold-ring, which has been brought to theproper point between them. The plunger and mold then beingsimultaneously retracted, the mold-ring, with the blank dependingtherefrom,is moved along the track,the blank passing through thereheating-furnace, the chilled surface being thus brought to the propertemperature. The mold-ring being thus brought to the proper point at theblowing-station, the blow-mold is closed about it, and the blowhead,being rotated, is forced down against the mold-rim g so as to rotate theinner rotaryring portion thereof. The blank is thus rotated oroscillated during the blow ing operation, and a seamless article isobtained.

The advantages of my invention result from the reheating of the pressedblank before blowing it, since a much better article is af- ICO fordedand one having a finer surface, and the elongating action is easily andcompletely effected in the blowing operation.

Many different forms of apparatus may be designed by the skilledmechanic without departing from my invention, since I claim- 1. Inapparatus for forming hollow glass articles, a pressing apparatus, ablowing apparatus, a movable mold-rin g, transfer mechanism arranged tocarry the mold-ring and blank from the pressing apparatus to the blowingapparatus, and a furnace in the path of the transfer mechanism, andarranged to reheat at least a portion of the blank before blowing;substantially as described.

2. In apparatus for forming hollow glass articles, a pressing apparatus,a blowing apparatus, a track extending between them, a mold-ring movablealong the track, and arranged to transfer the pressed blank to theblowing apparatus, and a furnace intermediate of the length of thetrack, and arranged to heat at least a portion of the blank beforeblowing it; substantially as described.

3. In apparatus for forming hollow glass articles, a track, a mold-ringmovable upon the track, pressing apparatus at one point along the trackarranged to press a blank and secure it to the mold-ring, mechanism forblowing the pressed blank located at another point along the track, andan intermediate slotted furnace through which the blank passes as themold-ring is moved along the track; substantially as described.

4. In apparatus for forming hollow glass articles, a pressing apparatus,a blowing apparatus, a movable mold-ring, transfer mechanism arranged tocarry the mold-ring and the blank from the pressing apparatus to theblowing apparatus, the blowing apparatus ineluding a blow-head,mechanism for rotating the blow-head and mold-ring during the blowingoperation, and a furnace in the path of the transfer mechanism andarranged to heat at least a portion of the blank before blowing;substantially as described.

5. The combination with a track, of a hollow slide movable thereon, anda mold-ring revolubly mounted on the slide; substantially as described.7

6. The combination with a track, of a ringshaped support movablethereon, a mold-ring revoluhly mounted on the support, and a blow-headarranged to turn the mold-ring; substantially as described.

In testimony whereof I have hereunto set my hand.

WILLIAM BUTTLER.

WVitnesses:

WILLIAM A. DRAGOO, DAVID ROBERTS.

